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Dify version

1.11.1

Cloud or Self Hosted

Self Hosted (Docker)

Steps to reproduce

1. Create a new Workflow or Chatflow.
2. In the "Start" node, add a variable of type Array[File].
3. Set a default value for this variable (e.g., upload a file).
4. Click "Publish" and "Publish as Tool".
5. Click "Publish" again
6. Observe the first error: Pydantic validation error (expecting int/str/float/bool but got a dict/base64Url).
7. Attempt to click "Publish" again.
8. Observe the second error: "Tool with name [name] or app_id [id] already exists".

✔️ Expected Behavior

The system should correctly

❌ Actual Behavior

1. Pydantic throws a validation error because it fails to parse the file object (dict with base64Url/id) as a basic data type.
2. After the initial failure, the tool name/ID becomes "locked" in the database.
3. Any further attempts to publish result in an "already exists" error, making the tool name unusable.

Screenshots: